Oracle认证考试
Over the course of a day，a department performed multiple DML statements （inserts， updates， deletes） on multiple rows of data in multiple tables. The manager would like a report showing the time， table name，and DML type for all changes that were made. Whi
题目
Over the course of a day，a department performed multiple DML statements （inserts， updates， deletes） on multiple rows of data in multiple tables. The manager would like a report showing the time， table name，and DML type for all changes that were made. Which Flashback technology would be the best choice to produce the list？（）
- A、 Flashback Drop
- B、 Flashback Query
- C、 Flashback Transaction Query
- D、 Flashback Versions Query
- E、 Flashback Table
相似问题和答案
第1题：
使用jdbc 编写class EnrollmentImpl 实现接口 Enrollment:
public interface Enrollment{
public void createStudent(Student student) throws Exception;
pubic void createCourse(Course course) throws Exception;
public void enroll(Student student, Course course) throws Exception;
public void exam(Student, Course course, float grade) throws Exception;
}
第2题：
The direction a vessel is pointed at any given time is the ______.
A.course
B.track
C.heading
D.course over the ground
第3题：
Customer, This suit looks nice. _________?
Assistant: Yes, of course. The fitting room is over there.
A． How much is it
B． Can I Try it
C． How can I buy it
D． Can I Try it on
从Assistant的回答中“试衣间在那边”可知顾客是想试一试这件他(她)认为很漂亮的衣服。选项A(多少钱?)，选项C(我怎样才能买它?)不合题意 选项B虽然也表达的是“我是否可以试一试”的意思，但是用在试衣服的情况下，只有D项的表达是合适的。
第4题：
Would you mind if I use your car? Of course not.（）
- A、I'm sorry I can't
- B、I'm afraid not
- C、It's over there
- D、I have no car
正确答案:C
第5题：
Would you mind if I use your car? Of course not.（）
AI'm sorry I can't
BI'm afraid not
CIt's over there
DI have no car
C
略
第6题：
What is NOT an advantage of the rhumb line track over a great circle track?
A.Easily plotted on a Mercator chart
B.Negligible increase in distance on east-west courses near the equator
C.Does not require constant course changes
D.Plots as a straight line on Lambert conformal charts
第7题：
The direction in which a vessel is steered is the course. The path actually followed is the ______.
A.route
B.track
C.heading
D.course over the ground
第8题：
航向复原。
A.Course again.
B.Course two.
C.Course more
D.Course line
第9题：
航向复原。（）
- A、Course again.
- B、Course two.
- C、Course more.
- D、Course line.
正确答案:A
第10题：
Which of the following is the FIRST course of action before implementing a change to a server？（）
- A、 Survey users to get their response to the potential server change.
- B、 The change should be approved by management.
- C、 Switch over to the alternate site so users are not affected.
- D、 Implement RAID so the server does not go offline.
正确答案:B